Home / 13,913.04-20,874.90-8,370.36

Finding the Fourth Proportional to 13,913.04, 20,874.90 and 8,370.36

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Solution

The fourth proportional to 13,913.04, 20,874.90 and 8,370.36 is: 12,558.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,913.04 : 20,874.90 = 8,370.36 : x
  2. Step 2: Convert to fraction form
    13,913.04/20,874.90 = 8,370.36/x
  3. Step 3: Cross multiply
    13,913.04x = 20,874.90 × 8,370.36
  4. Step 4: Simplify right side
    13,913.04x = 174,730,427.96
  5. Step 5: Solve for x
    x = 174,730,427.96/13,913.04
  6. Step 6: Final answer
    x = 12,558.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.